--- a/MemoryDBLink.hpp	Wed Aug 22 00:42:25 2012 +0200
+++ b/MemoryDBLink.hpp	Wed Aug 22 01:07:06 2012 +0200
@@ -7,18 +7,27 @@
 
 class MemoryDBLink : public FileDBLink {
 public:
-  virtual void addFile(const QString& path, qint64 size, const QDateTime& dtime, const QCryptographicHash& hash);
   bool exists(const QString& path)
   {
     return (entries.contains(path));
   }
 
   QStringList toStringList();
-  const QList<QSharedPointer<DBInfo> > values() const;
+
+  virtual void addFile(const QString& path, qint64 size, const QDateTime& dtime, const QByteArray& hash);
+  virtual void updateFile(const QString& path, qint64 size, const QDateTime& dtime, const QByteArray& hash);
+  DBStatus existsWithMtime(const QString& path, const QDateTime& mtime);
+
+  const QList<QSharedPointer<DBInfo> > values(const QString& prefix = QString() ) const;
+  virtual void keepOnlyFromPrefix(const QString& prefix, const QStringList& files);
+  virtual void deleteFileFromDB(const QString& path);
+
 
 private:
   void addFile(const DBInfo& info);
   bool tryAddFile(const DBInfo& info);
+  void updateFile(const DBInfo& dbinfo);
+
   QMap<QString, QSharedPointer<DBInfo> > entries;
 };